Solar panels can be up to 300 feet from the battery with high voltage and thick cables. To find the best distance, consider voltage, cable size, system efficiency, and potential power loss. For battery racks, there shall be a minimum clearance of 25 mm (1 in. Wire gauge must meet local codes. . Somewhere in the background, likely baking in the sun or enduring a blizzard, is an outdoor photovoltaic energy cabinet and a telecom battery cabinet, quietly powering our digital existence non-stop. The power generated by solar energy is used by the DC load of the base station computer room, and the insufficient power is supplemented by energy storage. . th their business needs. Proper installation and a. .